User interface for a portion of a display screen



FIG. 1 is a front view of a user interface for a portion of a displayscreen showing our new design; and,

FIG. 2 is an enlarged view of the claimed region in FIG. 1.

The broken lines on the right side and lower left side form unclaimedboundaries of the design. The broken line showing of the display screenin FIG. 1 is for illustrative purposes only and forms no part of theclaimed design.

The ornamental design for a user interface for a portion of a displayscreen, as shown and described.